Improvement in gas-bttrners



J. W. CHEMIN.

G-as Burner.

Patented Jan. 11, 1870.

N.PE1RS, PHOTO-UTNDGRMHER. WASHINGTON. D C.

vantage of the check-meter C, tig.

- waited garten J'osnrnw. onnnrn,

Letters Patent No. 98,744,

or New YORK, N. Y.

dated January 11, 1870.

IMPRQVEMENT IN GAS-BURNERS.

The Schedule referred to in these Letters Patent and making of the same.

To all whom it may concern:

\ ing at the top, as shown.

In the annexed drawing- Figure 1 is a plane view of the burner.

Figure 2 is a vertical section ofthe cylindrical body or heating-chamber.

Figure 3 is a vert-ical section of the top ot' the burner, which t-s into vthe heating-chamber at a.

"Figure 4 is a vertical section ofthe check-meter, which is placed internally at the lower end of the heating-chamber.

Figure 5 is an interior conducting copper tube, screw-threaded, and connected with fig. 3 at y, occupying a central position in the expansion-chamber, and descending nearly to the check-meter, as seen in fig. (i.

Figure 6 is a vertical section of the burner, withl all its parts put together.

It is evident that the quantity of gas consumed in a burner depends on the pressureI or the velocity with which it passes through the burner; hence, the ad` 4, at the base, which arrests the flow of gas, before it enters the burner, and serves the triple function of connectingT the expansion-chamber direct-ly with the supply-pipe, and being a meter and a checl; at the same time.

Most, it' not all the burners now in use have the orifice atthe bottom larger than at the tip, and hence a large quantity of gas passes through wastefully, without giving any light, on account of the great pressure inthe burner. Under these circumstances,

there is no room for expansion; but, on the contrary, the gas is condensed. This is entirely overcome by my burner, as the aperture at the tip is larger than those at the bottom, which is a principal part of the great secret of making a good economical burner.

A, in the drawing, is the expansion or heatingchamber, internallyscrew-threaded at each-endl B is thel removable top of the burner, in the bottom of which is screwed a copper tube, I), and in the top can be screwed any-sized tip.

C is a vertical section of a 4perforated cap or checkmeter, screw-threaded internally and externally, which serves the triple function before described.

D is the interior, conducting, copper tube, upon which .the tip rests, when both are screwed into thecap B.

The tip E heats the copper tube, and this aids in snperheating the gas in the expansion-chamber.

The gas cntersfrorn the snpply-pipe, through the perforations in the check-meter, into and up the heating-chamber, thence downI and up through the concentric copper tube. t

rlhe advantage of the heating-chamber is apparent.

It is well known that there is no limit to the expansion of the gases, and hence the necessity of room tbr the expansionin a heated chamber. V

The surplus gas in the chamber aids in. producingV a steady flame, by supplying any momentary deticiency in the fluctuation of the gas in the supplypipes.

The capacity of the burner is considerable, and yet it casts no perceptible shadow. y

The use and advantages of the top part, g. 3, are apparent. It also serves the. triple function of con- Y necting with't-he expansion-chamber at d, the interior tube at g, and the tip at c. .l

The advantages ofthe tip are as follows: It maybe made of several substances,

viz, silver, iron, brass, lm'a, soapstonc,

8Go., and of any size, and

`can be easily' replaced. It-must be borne in mind` that the oriitcc in the same must, in every instance,

be larger than the holes in the check-meter.

Photomet-ric tests have been made in New York city with this burner, and the results obtained under tive-tenths pressure are, that my burner gives' a luminosity of nine candles from three feet ot' gas, while the ordinary bat-wings and fish-tails give only the light of ve candles from the same quantity of gas under the same pressure. ltays, patented in 1858, gave only the light of' six and two-tenths candles from tivo and seven-tenths. feet of gas under the, same pressure, which is owing principally to their great interior obstruction.

My burner is simple in its construction,'and is made Y `ot five parts; -but it is evident that it can be constructed of fewer pieces; for instance, A and B might be in one piece, and other parts might be united also.

The construction of my burner not being so complicated as others. it is easily cleaned,- and one burner can be used for a large or small light, as desired, simply by increasing or diminishing the perforations in thecheck-meter, and 'changing the tip to a larger or smaller one, to correspond.

` I believe I have thus shown the nature of my invention, so as to. enable others to make and use the same; therefore, Y 1

What I claim, and desire to secure by Letters Patent of thc United States, is

The combination of the heating-chamber A, cap B, conducting-tube l), check-meter C, substantially as described.

JOSEPH W. CHEMIN.

Witnesses: l

SERAPHINE Masa, R. E. MARSH.

Other burners, and 

